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Mathematical Methods by Pearson
book

Mathematical Methods by Pearson

by E. Rukmangadachari
May 2024
Intermediate to advanced content levelIntermediate to advanced
437 pages
17h 41m
English
Pearson India
Content preview from Mathematical Methods by Pearson
7-14 Mathematical Methods
85 28 1.5
3.0714
14
a
−×
==
(6)
The equation of the straight line: y = 3.07 + 1.5x
(7)
y (x = 1) = 3.07 + 1.5 × 1 = 4.57 (8)
EXERCISE 7.1
1. Find a least squares straight line for the following data:
x 1234
y 5367
Ans: y = 3 + 0.9x
2. Fit a straight line to the following data:
x 12345
y 34568
Ans: y = 1.6 + 1.2x
3. Fit a quadratic polynomial to the following data:
x 13 5 79
y 2 7 10 11 9
Ans: y = 1.556 + 3.757x 0.2857x
2
4. Fit the following data to the law pv
g
= c:
p 200 100 50 30 20 10
v 1.0 1.7 2.9 4.8 5.9 10
Ans: pv
1.3
= 200
5. Fit the curve y = ae
bx
to the following data:
x 0 2 4
y 5.1 10 31.1
[Andhra 1999] ...
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Publisher Resources

ISBN: 9781299446557Publisher Website